Interplanetary precision laser could reach to Mars and beyond
(Phys.org) —Currently, precision laser ranging is limited to the Earth-Moon distance. These systems are based on passive laser ranging, so that the signal deteriorates as 1/R4 over distance R. In a new study, physicists have designed a system that has a range thousands of times this distance due to the fact that it is based on active laser ranging, where the signal deteriorates as only 1/R2. The new system also has the potential to achieve sub-millimeter accuracy, yielding an overall performance improvement that is more than three orders of magnitude better than today’s state-of-the-art space ranging systems.
Continue Reading
high resolution →

Interplanetary precision laser could reach to Mars and beyond

(Phys.org) —Currently, precision laser ranging is limited to the Earth-Moon distance. These systems are based on passive laser ranging, so that the signal deteriorates as 1/R4 over distance R. In a new study, physicists have designed a system that has a range thousands of times this distance due to the fact that it is based on active laser ranging, where the signal deteriorates as only 1/R2. The new system also has the potential to achieve sub-millimeter accuracy, yielding an overall performance improvement that is more than three orders of magnitude better than today’s state-of-the-art space ranging systems.

Continue Reading